[参考译文] CC1352P7：CC1352没有足够的 TX 功率-覆盖无法正常工作？ (单端、内部偏置)

https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1364546/cc1352p7-cc1352-not-enough-tx-power---override-not-working-single-ended-internal-bias

你(们)好、

就定制电路板申请帮助、而我正尝试使其达到我们的规格。 通常、此系统需要在4-GFSK 调制下在430 -480MHz 范围内工作。

我们为 RX 使用 CC1352P7、并使用外部射频 LNA、为 TX 使用外部射频放大器、所有这些都具有内部偏置。

RX 设计为从 RFN 引脚输入、而 TX 设计为从 RFP 输出(全部在 Sub_1GHz 引脚和单端)。  

根据 SWRA640 (修订版 H)第2.2节(配置前端模式)、我们已将 Config.frontEndMode 设置为0x02以在 RFN 上选择单端模式 RX。 此外、我们还按照建议通过设置 x=1来设置覆盖。 请注意、数据表中提到了 ADI_HALFREG_OVERRIDE S (0、16、0x7、x)、其中必须删除 S 以满足编译器的要求、因为没有定义此类宏。  

我曾尝试在我们自己的应用软件(基于 TI-RTOS)和 Smart-RF Studio 7中使用这些设置、但效果不令人满意。 使用频谱分析仪直接在 RFP 输出端进行测量时、我预计会收到大约0dBm - 3dBm 的信号、但我测得的信号减少了25-30dB。 我怀疑测量的是 RXn 引脚和布线上传输信号产生的寄生耦合。  

但是、当我将 .config.frontEndMode 设置为0x1 (RFP 上的单端)时、输出功率通常为0dBm、但很自然- 由于现在在 RFP 引脚上配置了 RX、因此我的 RX 灵敏度会以~30dB 的损耗。 这让我认为、在我们的配置中、将 TX 分配给 RFP 引脚的覆盖设置无法正常工作。  

我已包含 SmartRF Studio 7生成的 smartrf_settings.c。 请告诉我您是否/需要什么其他信息！

我的问题：

1. 通常：如何在保持 RX 灵敏度的同时提高 TX 性能？ -最好在软件中;-)  
2. 我是否遗漏了任何其他设置、是否以错误的方式配置了某些设置？  
3. 覆盖是否按照我以前的方式正确应用？ 在覆盖块的哪个位置插入此行是否重要？

提前感谢！  

//*********************************************************************************
// Generated by SmartRF Studio version 2.30.0 (build#397)
// The applied template is compatible with cc13x2_26x2 SDK version 2.30.xx.xx or newer.
// Device: CC1352P7 Rev. B (1.1). Only supported by CC26x2 SDK version 5.10.xx.xx or newer
//
//*********************************************************************************


//*********************************************************************************
// Parameter summary
// RX Address0: 0xAA 
// RX Address1: 0xBB 
// RX Address Mode: No address check 
// Frequency: 459.30000 MHz
// Data Format: Serial mode disable 
// Deviation: 0.797 kHz
// Packet Length Config: Variable 
// Max Packet Length: 255 
// Packet Length: 20 
// Packet Data: 255 
// Preamble Count: 4 Bytes 
// Preamble Mode: Send 0 as the first preamble bit 
// RX Filter BW: 9.7 kHz
// Symbol Rate: 4.80042 kBaud
// Sync Word: 0x930b51de 
// Sync Word Length: 32 Bits 
// TX Power: 3 dBm 
// Enable high output power PA: false 
// Whitening: No whitening 

#include "smartrf_settings_NGT.h"

#include DeviceFamily_constructPath(rf_patches/rf_patch_cpe_prop.h)

// TI-RTOS RF Mode Object
RF_Mode RF_prop =
{
    .rfMode = RF_MODE_AUTO,
    .cpePatchFxn = &rf_patch_cpe_prop,
    .mcePatchFxn = 0,
    .rfePatchFxn = 0
};


// Overrides for CMD_PROP_RADIO_DIV_SETUP_PA
uint32_t pOverrides[] =
{
    // override_tc706.xml
    ADI_2HALFREG_OVERRIDE(0,16,0x8,0x8,17,0x1,0x1),
    ADI_HALFREG_OVERRIDE(0,16,0x7,1),
    HW_REG_OVERRIDE(0x609C,0x001A),
    (uint32_t)0x000188A3,
    ADI_HALFREG_OVERRIDE(0,61,0xF,0xD),
    // override_prop_common_sub1g.xml
    // TX: Set FSCA divider bias to 1
    HW32_ARRAY_OVERRIDE(0x405C,0x0001),
    // TX: Set FSCA divider bias to 1
    (uint32_t)0x08141131,
    // override_prop_common.xml
    // DC/DC regulator: In Tx with 14 dBm PA setting, use DCDCCTL5[3:0]=0xF (DITHER_EN=1 and IPEAK=7). In Rx, use default settings.
    (uint32_t)0x00F788D3,
    (uint32_t)0xFFFFFFFF
};


// CMD_PROP_RADIO_DIV_SETUP_PA
// Proprietary Mode Radio Setup Command for All Frequency Bands
rfc_CMD_PROP_RADIO_DIV_SETUP_PA_t RF_cmdPropRadioDivSetup =
{
    .commandNo = 0x3807,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .modulation.modType = 0x1,
    .modulation.deviation = 0x33,
    .modulation.deviationStepSz = 0x2,
    .symbolRate.preScale = 0xF,
    .symbolRate.rateWord = 0xC4A,
    .symbolRate.decimMode = 0x0,
    .rxBw = 0x45,
    .preamConf.nPreamBytes = 0x4,
    .preamConf.preamMode = 0x0,
    .formatConf.nSwBits = 0x20,
    .formatConf.bBitReversal = 0x0,
    .formatConf.bMsbFirst = 0x1,
    .formatConf.fecMode = 0x9,
    .formatConf.whitenMode = 0x0,
    .config.frontEndMode = 0x2,
    .config.biasMode = 0x0,
    .config.analogCfgMode = 0x0,
    .config.bNoFsPowerUp = 0x0,
    .config.bSynthNarrowBand = 0x0,
    .txPower = 0x40D6,
    .pRegOverride = pOverrides,
    .centerFreq = 0x01CB,
    .intFreq = 0x8000,
    .loDivider = 0x0A,
    .pRegOverrideTxStd = 0,
    .pRegOverrideTx20 = 0
};


// CMD_FS
// Frequency Synthesizer Programming Command
rfc_CMD_FS_t RF_cmdFs =
{
    .commandNo = 0x0803,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .frequency = 0x01CB,
    .fractFreq = 0x4CCD,
    .synthConf.bTxMode = 0x0,
    .synthConf.refFreq = 0x0,
    .__dummy0 = 0x00,
    .__dummy1 = 0x00,
    .__dummy2 = 0x00,
    .__dummy3 = 0x0000
};


// CMD_PROP_TX
// Proprietary Mode Transmit Command
rfc_CMD_PROP_TX_t RF_cmdPropTx =
{
    .commandNo = 0x3801,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .pktConf.bFsOff = 0x0,
    .pktConf.bUseCrc = 0x1,
    .pktConf.bVarLen = 0x1,
    .pktLen = 0x14,
    .syncWord = 0x930B51DE,
    .pPkt = 0 // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
};


// CMD_PROP_RX
// Proprietary Mode Receive Command
rfc_CMD_PROP_RX_t RF_cmdPropRx =
{
    .commandNo = 0x3802,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .pktConf.bFsOff = 0x0,
    .pktConf.bRepeatOk = 0x0,
    .pktConf.bRepeatNok = 0x0,
    .pktConf.bUseCrc = 0x1,
    .pktConf.bVarLen = 0x1,
    .pktConf.bChkAddress = 0x0,
    .pktConf.endType = 0x0,
    .pktConf.filterOp = 0x0,
    .rxConf.bAutoFlushIgnored = 0x0,
    .rxConf.bAutoFlushCrcErr = 0x0,
    .rxConf.bIncludeHdr = 0x1,
    .rxConf.bIncludeCrc = 0x0,
    .rxConf.bAppendRssi = 0x0,
    .rxConf.bAppendTimestamp = 0x0,
    .rxConf.bAppendStatus = 0x1,
    .syncWord = 0x930B51DE,
    .maxPktLen = 0xFF,
    .address0 = 0xAA,
    .address1 = 0xBB,
    .endTrigger.triggerType = 0x1,
    .endTrigger.bEnaCmd = 0x0,
    .endTrigger.triggerNo = 0x0,
    .endTrigger.pastTrig = 0x0,
    .endTime = 0x00000000,
    .pQueue = 0, // INSERT APPLICABLE POINTER: (dataQueue_t*)&xxx
    .pOutput = 0 // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
};